Geoegb v



(No Model.)

G. V. NAUERTH 8v M..JENKINS.

LETTER PILE BOX.

Patented Apr. 7, 1885.

`IINVENTOH llNrrEn grains Partnr @irreal GEORGE v. NAUERTH, or CINCINNATI, AND JOHN M.' JENKINS, or can,... THAGE, JissiefNoEs- 'ro THE GLOBE Finns OOMPnNY, oE..orNorNNATI,

OHIO.

Lsrrenmritesos.

SPECIEECAIION forming part of Letters Patent No. 315,157, dated April 7,' 1885. Application filed December l2, 1883. (No model.)

To aZZ whom, it may concern:

Be it known that we, GEORGE V. NA UERTH,

of Cincinnati, county of Hamilton, State of resents ouriilefbox open-flifleeingthe box-,B

the index-sheets, C C perfcrations in these sheets, and D D rods extending through these perforations and affording stays by which the leaves are secured inplace and ways on which they may freely slide. these rods, which may, if preferred, be made with a shoulder at one or both ends,or a small perforated rim of metal may be placed round the point made to answer the purpose of a shoulder; Figs. 3 and 4, Viewsillustrating the modification just mentioned.

y These rods must necessarily be introduced after the sheets are in their place. lf' inserted through the walls of the box, the box-would thereby be weakened, and require projections or nuts on the outside of the walls to prevent the rods from becoming loosened andl dropping out Aof the box. These walls are too thin to admit of coutersinking, and any perform tion which would weaken aswell as mar them is to be avoided. Any projection within the box would be seriously objectionable even ii'it were practicable to provide such projections and to fasten the rods within them after the index-sheets were in place. The labor of making special provision in the box for the reception of these rods would also add to the expense of construction, whilcdepreciating thc value oi' the box. I

Fig. 2 shows onerof' I We iind that by making the rods pointed,as V145 shown in Figs. 2, 3, 'or 4, and slightly longer than the interior thickness of the box, and availing ourselves vof the slight 'elasticity or flexibility of the wallsof the box in introducing them into place, and of the perforations already formed in the indexdeaves at uniform distances from 'their respective edges, as guides to their proper position,we can avoid all these diiiiculties and obtain with great economy a secure fastening upon which the sheets readily' slide, and which, instead of weakening the box, serves to strengthen it against the external knocks or 'pressure-in Vhandling to. which it is liable. v a i The Walls ofthe box between which the rods 6o A are embraced are composed of thin wood, tarboard,strawboard,or other suitable materiail. The index'sheets, with their perforations at such distances from their edges as it is desired the rods should be from theinner edgesof the box are slid back against the rear of the box and the rods then introduced, the walls of the box being pressed apart suiiicientlyfor this purpose, and when springing back, aided, it' necessary, byaslight pressure, embedding the points of the rods sufficiently to hold them irmly and permanently in position. v We prefer lo place a fillet of muslin or other tenacious material around the perforatons of the index-sheets; but this may be omitted. 75

'The rods may benut from wire or other smitable material.

NVc claini.- i In combination with the flexible walls of a ille-box, the pointed rods, one or more, introduccd into the perforations ofythe indexsheets and secured between the walls,.subl stan'lially as described. l

GEO. V. N AUERTH. JOHN M. JENKINS. Y

Witnesses: u

FRANK W. BURNHAM, ARTHUR LE. BOUTILLIER. 

